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- [in voiceover] Listen. Can you hear it? The music. I can hear it everywhere. In the wind, in the air, in the light. It's all aound us. All you have to do is open yourself up. All you have to do is listen.
- Richard: Why is it so important that you want him now?
- Lyla: I've ALWAYS wanted him!
- Lyla: [in tears] I've waited eleven years, two months, and fifteen days just to find out that he's alive!
[Jeffries stares at Lyla]
- Lyla: [she chuckles a little] I've been counting.
- Freddie Highmore as Evan Taylor / August Rush
- Keri Russell as Lyla Novacek
- Jonathan Rhys Meyers as Louis Connelly
- Robin Williams as Maxwell "Wizard" Wallace
- Terrence Howard as Counselor Richard Jeffries
- William Sadler as Thomas Novacek
- Marian Seldes as The Dean
- Jamia Simone Nash as Hope
- Mykelti Williamson as Reverend James
- Leon G. Thomas III as Arthur
- Alex O'Loughlin as Marshall Connelly
- Bonnie McKee as Lizzy
- Timothy Mitchum as Joey
- Becki Newton as Jennifer
- Aaron Staton as Nick
- Ronald Guttman as The Professor